کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
641769 1457012 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hybrid ozonation-ceramic membrane filtration of surface waters: The effect of water characteristics on permeate flux and the removal of DBP precursors, dicloxacillin and ceftazidime
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Hybrid ozonation-ceramic membrane filtration of surface waters: The effect of water characteristics on permeate flux and the removal of DBP precursors, dicloxacillin and ceftazidime
چکیده انگلیسی
The removal of the disinfection byproducts (DBPs) precursors, antibiotics dicloxacilline and ceftazidime by hybrid ozonation membrane filtration (HOMF) has been studied in three surface waters (Lake Huron, Lake Lansing and Huron River). This study demonstrates that, compared to membrane filtration, HOMF significantly improves the removal of dicloxacilline, ceftazidime, and disinfection byproduct precursors. At a sufficiently high ozone dosage, the concentrations of the two antibiotics in the permeate were reduced to below the detection limits in the three waters studied. Significant reductions in total organic carbon (TOC), specific UV absorbance (SUVA), and chlorinated disinfection byproducts (DBPs) were also achieved, suggesting that the system could also be effective at controlling the formation of DBPs during chlorination. The fouling behavior of the system was also studied. The degree of fouling was greater in waters with a high TOC and/or alkalinity. Alkalinity adversely affected the removal of the antibiotics and the ability of ozone to control fouling. The effect of alkalinity can be attributed to the scavenging of hydroxyl (OH) radicals by carbonate species.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 107, 2 April 2013, Pages 179-186
نویسندگان
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